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The nominal voltage of a led-acid battery is 13.5 V (almost 14). All equipment connected to 12 V batteries are design to withstand the 13.5 V and a little more.

If worried, connect one or two silicon diodes in series from the + terminal of the battery to your camera, as follows:

_____ _____

(+)-------[_____]-----[_____]------(o)

Battery Cathode Cathode Camera input terminal

The diodes will create a constant voltage drop of 0.7 V each. If you mount them inside a lamp switch, when the switch is on, the diodes will be short-circuited (charger off); when the switch is off, th diodes will be inserted in series (charger on)

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17y ago

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